What is CVE-2026-76872?

CVE-2026-76872 is a medium-severity vulnerability in Netcore Nr255-V, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-09-15.

How severe is CVE-2026-76872?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Netcore Nr255-V

CVE-2026-76872

Netcore NR255-V version 1.5.130703 contains a stored cross-site scripting vulnerability in DHCP static IP and IP ACL management pages, including dhcp_add_staticip_cgi, dhcp_staticip_show_cgi, ip_acl_set_cgi, and ip_acl_show_cgi. Attackers can inject persistent malicious scripts through these components to compromise the web management interface for other users.'

Vulnerability class: XSS (Cross-Site Scripting)

Published 2026-09-15 · last modified 2026-09-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.002 (14.5th percentile), scored 2026-10-31.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 14th percentile — 14.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Netcore Nr255-V — versions 1.5.130703

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/draw-ctf/netcore-router-public-refs/blob/main/2026.08.19-netcore-nr2… (third-party-advisory)
www.vulncheck.com/advisories/netcore-nr255-v-1.5.130703-stored-cross-site-scrip… (third-party-advisory)

Frequently asked questions

What is CVE-2026-76872?: CVE-2026-76872 is a medium-severity vulnerability in Netcore Nr255-V, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-09-15.
How severe is CVE-2026-76872?: Medium severity. CVSS v3 base score is 5.4 out of 10.